Vector network analyzer accessories from Rohde & Schwarz

Vector network analyzer accessories

High-quality VNA accessories from Rohde & Schwarz

Ensure precise measurement conditions with top quality accessories

Achieving, maintaining and verifying maximum accuracy and reliability of a VNA test setup requires high-quality calibration and connection equipment. To enable this, Rohde & Schwarz provides leading-edge accessories for your VNA. These include not only two series of network analyzer test cables, but also electronic and inline calibration units for efficient, precise and user-friendly calibration. For even more detailed and complex calibration needs, and for performance analysis, we offer manual calibration and verification kits. Our switchable attenuators allow for a precise adjustment of the power levels in comprehensive setups, or other individual applications such as general source and receiver linearity calibration.

Electronic and inline calibration units
Product Name
Type
Frequency range
Connector type
Number of ports
Description
Type
Electronic calibration units
Frequency range
9 kHz - 50 GHz
Connector type
3.5 mm (f), N(f), 3.5 mm (f), 2.92 mm (f), 2.4 mm (f)
Number of ports
2 or 4 ports
Description
High-end series, mixed connector types available up to 8.5 GHz, 4 port models up to 40 GHz
Type
Electronic calibration units
Frequency range
300 kHz - 20 GHz
Connector type
N (f), 3.5 mm (f)
Number of ports
2 to 8 ports
Description
High-end series, calibration of 6/8 ports with a single calibration cycle. Besides: 2-port unit with 75 Ohm ports.
Type
Electronic calibration units
Frequency range
100 kHz - 67 GHz
Connector type
SMA (f), N (f), 1.85mm(f)
Number of ports
2 to 24 ports
Description
Economy series, calibration of 2 ports up to 67 GHz,  24 ports up to 8.5 GHz with a single calibration cycle
Type
Inline calibration unit
Frequency range
10 MHz - 40 GHz
Connector type
SMA (f /m), 2.92 mm (f/m)
Number of ports
2 to 48 ports
Description
Remote controlled calibration refresh without re-connection of calibration devices: For TVAC testing and automatic (multiport)  production setups
Manual calibration and verification kits
Product Name
Type
Frequency range
Connector type
Calibration standards
Description
Type
Calibration kits
Frequency range
DC to 67 GHz
Connector type
3.5 mm {f/m}, 2.92mm {f/m}, 2.4 mm {f/m}, 1.85mm {f/m}
Calibration standards
Open, Short, Match, Through male/female each
Description
High end
Type
Calibration kits
Frequency range
DC to 110 GHz
Connector type
N (f/m), 1.0 mm(f/m)
Calibration standards
Open, Short, Match, Through male /female each
Description
High end accuracy with data based characterization data (individual S-parameters delivered with each kit) - Including torque wrench and open-end wrench
Type
Calibration kits
Frequency range
DC up to 43.5 GHz
Connector type
N (f/m), 3.5mm (f/m) , 2.92mm (f/m)
Calibration standards
Open, Short, Match, Through
Description
Compact unit
Separate versions for male or female kits
Type
Calibration kits
Frequency range
DC to 3 GHz
Connector type
N (f/m)
Calibration standards
Open, Short, Match, Through
Description
Economy
Both, male and female version in one kit
Version for 50 Ohm and 75 Ohm
Type
Verification kits
Frequency range
45 MHz up to 50 GHz
Connector type
N (f/m), 3.5 mm(f/m), 2.9 mm(f/m), 2.4 mm(f/m)
Calibration standards
Offset Short (f and m), Mismatch (f and m), Attenuator (f to m), Stepped Through (f to m)
Description
High-end, full VNA measurement uncertainty verification, 50 Ohm
Type
Wave guide calibration kit
Frequency range
50 GHz to 750 GHz
Connector type
WR15 to WR02
Calibration standards
Match, short, offset short
Description
Optional version including sliding match
Type
Calibration mixer
Frequency range
10 MHz to 40 GHz
Connector type
2.92 mm
Calibration standards
Mixer
Description
For mixer phase measurements with R&S®ZNA
Test cables
Product Name
Type
FrequencyRange
Connector types
Length
Description
Type
Test cable
FrequencyRange
DC - 67 GHz
Connector types
N (m) , 3.5 mm (f/m), 2.92 mm (f/m), 2.4 mm (f/m), 1.85 mm (f/m)
Length
635 mm (25 in) to 965 mm (38 in)
Description
Test cables for precision measurements where high phase stability and high mechanical flexibility are required
Type
Test cable
FrequencyRange
DC - 110 GHz
Connector types
N (m), N  75 Ω (m), 3.5 mm (f/m), 2.92 mm (f/m), 2.4 mm (f/m), 1.85 mm (f/m), 1.00 mm (f/m)
Length
160 mm (6 in) to 1524 mm (16 in)
Description
Semi rigid test cables mostly used for general-purpose applications
Switchable attenuators
Product Name
Type
Frequency range
Connector type
Attenuation / Resolution
Description
Type
Step attenuators
Frequency range
DC - 67 GHz
Connector type
N(f), 2.92mm (f), 1.85 mm (f)
Attenuation / Resolution
0 dB to 139.9 dB / 0.1  to 5 dB steps
Description
Switchable internal and external step attenuators with high attenuation accuracy and easy integration into automated test systems.
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    VNA accessories FAQ

    What is the difference between the R&S®ZV-Z9x and the R&S®ZV-Z19x test port cables series?

    Even if a VNA is of high quality, the connection to the DUT can be hampered by network analyzer test cables and connectors that compromise this quality. Rohde & Schwarz wants to ensure that the singal from its VNAs reaches the DUT without a loss of integrity or voltage. This is why we offer cables featuring rugged construction as well as excellent phase and amplitude stability. Both series, R&S®ZV-Z9x and R&S®ZV-Z19x stand for excellent RF quality: The focus of the R&S®ZV-Z9x cables lies in mechanical crush resistance of the cable body, stability of the connections, and very low spring back and positioning resistance. The R&S®ZV-Z19x cable series stand for a smart body combined with high-performing standard connectors.

    Should I choose an electronic calibration unit or a manual calibration kit?

    Electronic (automatic) calibration units apply automatically the following incorporated standards: open, short, match, (unknown) through. No manual connection of calibration standards is required. Thus, the automatic units are the most convenient and fastest way of calibration, and minimize operation errors such as mixing up standards during calibration, or poor connection reproducibility. Moreover, a number of test ports exceeding the number of cal-unit ports can be calibrated by repeated connection (eg. a two-port unit can calibrate a 4-port VNA, or even a 24-port mid-range R&S®ZNBT). On the other hand, the application is limited to the connector types and gender (except user supported re-characterization), and single standards are not available.

    Manual calibration kits are more flexible: with a single high-end kit, or two economy kits (male & female seperate), all male/female combinations are supported. Standards are available for one-path-two-port calibration, and completion with lines for TRL and other special calibration techniques is possible. Moreover, the standards can be used as auxiliary components, e.g. to terminate a test port or to have a through connection available.

    What are verification kits such as the R&S®ZV-Z4xx series used for?

    Even after a carefully carried out system error correction, the verification of the resulting accuracy is an important and justified aspect: e.g. aging of the calibration kit, limited reproducibility of the connections, and the actual test parameters may cause an uncertainty under real conditions, which is different from the typically idealized data sheet specificatons. However, as simple re-connection of the beforehand used calibration standards is misleading and just reveals the reproducibility of the calibration step - even severe calibration errors may remain hidden. A reliable uncertainty verification requires the additional measurement of known devices, with S-parameters different from the those of the calibration standards: This is enabled by the components included in the R&S®ZV-Z4xx verification kits. At the final stage, the verification procedure is supported by option R&S®ZNA-K50(P), presenting the measurement traces with the actual error bars.

    How do R&S®ZV-Z3xx inline calibration units work and what is the application?

    A VNA system error correction consists of connecting the calibration devices (manual kit standards or calibration unit) each time for calibration, and to disconnect them when the calibration step is completed. But there are application cases where no access to the reference plane is given, the most important ones are thermal vaccum chambers (TVAC): typically a calibration update is required after cooling down and evacuation. The solutions are InLine CalUnits, as they remain permanently connected in the reference plane, and a re-calibration can be initiated remote controlled on a key stroke.

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